A tiger walks the same worn groove along the edge of its exhibit like a broken record. A parrot methodically plucks out its own feathers until bare skin shows through. To a casual visitor, these can ...

It is not unusual for laboratory monkeys to engage in abnormal repetitive behaviors (ARBs), such as pacing and hair-plucking.

The term “abnormal” when it comes to mental health and psychopathology is often taken for granted. You might have taken, or at least heard of, college courses in “abnormal psychology.” What, then, is ...

Often “crazy” behavior is adaptive, and a coping response a dimension of resilience, and sometimes not. Source: Creative Commons Pxfuel There is great debate as to the validity of the psychiatric ...